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2 years ago

Please help i dont undertand it

Mathematics

2 answers:

padilas [110]2 years ago

6 0

1/2 of the rectangle is shaded and they are looking for area so it would be 14 times 8 and to combine that it would be 1/2(14 times 8)=56

n200080 [17]2 years ago

5 0

B
AKA 2

I have Khan Acadamy!!

Your welcome!

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Finding the surface area

Serga [27]

Answer: so you do length times width times height and then you divide by two

Step-by-step explanation:

7 0

2 years ago

Consider 8x2 - 48x = -104.

ki77a [65]

Answer:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

Step-by-step explanation:

<u>Quadratic Equation Solving</u>

We have the equation:

$8x^2-48x=-104$

Divide by 8:

$x^2-6x=-13$

Now complete the squares so the left side is a perfect square of a binomial:

$x^2-6x+9=-13+9=-4$

Factoring the perfect square:

$(x-3)^2=-4$

Taking the square root:

$x-3=\sqrt{-4}$

The square root of a negative number is an imaginary number:

$x-3=\pm 2\mathbf{i}$

Solving for x:

$x=3\pm 2\mathbf{i}$

The solutions are:

$3+ 2\mathbf{i}$

$3- 2\mathbf{i}$

7 0

2 years ago

Write 0.414141414141 as a fraction?

igor_vitrenko [27]

Answer:

The fraction is 41/99.

Step-by-step explanation:

The steps are :

$let \: x \: be \: fraction,$

$x = 0.414141.....$

$100x = 41.414141.....$

$100x - x = 41.414141..... \: - \: 0.414141.....$

$99x = 41$

$x = \frac{41}{99}$

4 0

2 years ago

قالت تبيلة: هذه صديقتي، ... رينا، هي طالبة جديدة أيضا.

kobusy [5.1K]

Answer:

duk u what language is this

Step-by-step explanation:

osjzmzmnsmakzjk

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3 0

3 years ago

Read 2 more answers

If the diameter of circle C is 3 times greater than the diameter of circle D, the area of circle C is how many times the area of

amid [387]

The radius of circle C is also 3 times greater than the radius of circle D.
The area of circle C:
A C = (3r)² π = 9 r² π
The area of circle D:
A D = r² π
9 r² π : r ² π = 9
Answer: It is 9 times the area of circle D.

7 0

3 years ago